CN107867766B - Membrane method water treatment process test device - Google Patents
Membrane method water treatment process test device Download PDFInfo
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- CN107867766B CN107867766B CN201711328860.8A CN201711328860A CN107867766B CN 107867766 B CN107867766 B CN 107867766B CN 201711328860 A CN201711328860 A CN 201711328860A CN 107867766 B CN107867766 B CN 107867766B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/005—Valves
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/03—Pressure
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
Abstract
The invention relates to a membrane method water treatment process test device, which comprises a raw water tank and an ultrafiltration membrane, wherein the raw water tank is connected with a water inlet main pipe, and a raw water control valve and a raw water pump are arranged on the water inlet main pipe; a primary multi-medium filter and a secondary multi-medium filter are arranged between the raw water tank and the ultrafiltration membrane, the water producing end of the ultrafiltration membrane is connected with a water producing branch, a water producing control valve is arranged on the water producing branch, and the water producing branch is connected with an intermediate water tank; the lower water outlet of the middle water tank is connected with an RO reverse osmosis membrane; the water producing port of the RO reverse osmosis membrane is connected with a water producing branch and a water producing backflow branch, and the water producing branch is connected with a water producing tank; the produced water return branch is connected with a return water main pipe, and the return water main pipe is connected with a return water port of the intermediate water tank; the concentrated water port of the RO reverse osmosis membrane is connected with a concentrated water discharge branch and a concentrated water reflux branch; the concentrated water discharge branch is connected with the concentrated water tank. The invention has the advantages of simple structure, reasonable design, convenient realization, low cost, prolonged service life of the ultrafiltration membrane, multifunction and the like.
Description
Technical Field
The invention belongs to the technical field of membrane water treatment, and particularly relates to a membrane water treatment process test device.
Background
Along with the continuous development of water treatment technology, the membrane method water treatment process is mature, and the membrane method water treatment process is free from acid-base regeneration, simple to operate, continuous water preparation and stable in effluent quality, so that the membrane method water treatment process is widely applied in the water treatment process. The membrane water treatment refers to the replacement of the traditional sand filtration and ion exchange process by the membrane treatment, and the whole water treatment system adopts the membrane treatment process, namely an ultrafiltration, reverse osmosis and EDI system. Along with the continuous maturation and popularization of membrane technology and the continuous reduction of the price of membrane element products, the membrane water treatment process is increasingly applied to water treatment systems.
Along with the gradual maturity of the membrane water treatment process, a series of experiments are needed to determine the optimal process flow aiming at different water qualities, and the earlier experiments can effectively play a reference role for large-scale application. The small test device of the membrane water treatment process in the current market has incomplete functions and lower equipment utilization rate.
Disclosure of Invention
The invention provides a multifunctional membrane water treatment process test device which has the advantages of simple structure, reasonable design, convenient realization, low cost, prolonged service life of an ultrafiltration membrane and multifunction, and solves the technical problems existing in the prior art.
The invention adopts the technical proposal for solving the technical problems in the prior art that:
a membrane method water treatment process test device is characterized in that: the device comprises a raw water tank, an ultrafiltration membrane and an RO reverse osmosis membrane, wherein the raw water tank is connected with a water inlet main pipe, and a raw water control valve and a raw water pump are arranged on the water inlet main pipe; a primary multi-medium filter and a secondary multi-medium filter are arranged between the raw water tank and the ultrafiltration membrane, the water inlet end of the primary multi-medium filter is connected with a water inlet main pipe through a primary water inlet branch, and a primary water inlet control valve is arranged on the primary water inlet branch; the water outlet pipe of the primary multi-medium filter is connected with the ultrafiltration membrane water inlet main pipe through a primary water outlet branch, and a primary water outlet control valve is arranged on the primary water outlet branch;
the water inlet end of the secondary multi-medium filter is connected with a water inlet main pipe through a secondary water inlet branch, and a secondary water inlet control valve is arranged on the secondary water inlet branch; the water outlet pipe of the secondary multi-medium filter is connected with the ultrafiltration membrane water inlet main pipe through a secondary water outlet branch, and a secondary water outlet control valve is arranged on the secondary water outlet branch;
a first-stage multi-medium filter switching branch is arranged between a water inlet main pipe between the first-stage multi-medium filter and the second-stage multi-medium filter and between the ultrafiltration membrane water inlet main pipe; the first-stage multi-medium filter switching branch comprises a first-stage switching water inlet control valve and a first-stage switching control valve which are arranged on the water inlet main pipe;
a secondary multi-medium filter switching branch is arranged between the water inlet main pipe between the secondary multi-medium filter and the ultrafiltration membrane water inlet main pipe and between the ultrafiltration membrane water inlet main pipe; the secondary multi-medium filter switching branch comprises a secondary switching water inlet control valve and a secondary switching control valve which are arranged on the water inlet main pipe;
the back flush port of the ultrafiltration membrane is connected with a back flush branch, the back flush branch is connected with a water inlet main pipe, a back flush water inlet control valve is arranged on the water inlet main pipe, and the back flush branch is provided with a back flush control valve;
the ultrafiltration membrane backwash drain end is connected with a backwash drain branch, and a backwash drain control valve is arranged on the backwash drain branch;
the water producing end of the ultrafiltration membrane is connected with a water producing branch, a water producing control valve is arranged on the water producing branch, and the water producing branch is connected with an intermediate water tank;
the lower water outlet of the middle water tank is connected with an RO reverse osmosis membrane water inlet branch, and the RO reverse osmosis membrane water inlet branch is connected with a water inlet of an RO reverse osmosis membrane; the RO reverse osmosis membrane water inlet branch is sequentially provided with an RO reverse osmosis membrane water inlet total control valve, a high-pressure pump, an RO reverse osmosis membrane water inlet total control valve and an RO reverse osmosis membrane water inlet pressure gauge; the water producing port of the RO reverse osmosis membrane is connected with a water producing pipe, the water producing pipe is connected with a water producing branch and a water producing backflow branch through a tee joint, the water producing branch is connected with a water producing tank, and a water producing control valve is arranged on the water producing branch; the produced water return branch is connected with a return water main pipe, and the return water main pipe is connected with a return water port of the intermediate water tank; a produced water reflux control valve and a produced water reflux flowmeter are arranged on the produced water reflux branch;
the RO reverse osmosis membrane is characterized in that a water concentration port of the RO reverse osmosis membrane is connected with a water concentration pipe, a water concentration pressure gauge is arranged on the water concentration pipe, and the water concentration pipe is connected with a water concentration discharge branch and a water concentration backflow branch through a tee joint; the concentrated water discharge branch is connected with the concentrated water tank; a concentrated water discharge control valve is arranged on the concentrated water discharge branch; the concentrated water backflow branch is connected with a water return main pipe, and a concentrated water backflow control valve and a concentrated water backflow flowmeter are installed on the concentrated water backflow branch.
The invention has the advantages and positive effects that: compared with the prior art, the invention has the following advantages:
1. the invention has simple structure, reasonable design, convenient realization and low cost.
2. The invention is simple and easy to operate, and operators can independently operate and complete the whole treatment process only by simple training.
3. The invention can flexibly select the experimental process according to different raw water quality. The device comprises a two-stage multi-medium filter system, an ultrafiltration system and a reverse osmosis system; the three systems can be connected in series for raw water treatment; two systems can also be operated in series, including a multi-medium filter system, an ultrafiltration system, a multi-medium filter system, a reverse osmosis system, an ultrafiltration system and a reverse osmosis system; the three systems can also be used for treating raw water independently.
4. The invention is provided with a two-stage multi-medium filter system, and the two-stage multi-medium filter can be independently operated or operated in series according to different raw water selections; the system can test the performance of the specific raw water such as the filter material height, the filter material type, whether two-stage filtration is needed or not.
5. The water inlet end of the ultrafiltration membrane element is provided with the guide plate, so that membrane wire disturbance caused by water flow scouring can be effectively prevented, and further wire breakage can be prevented, thereby reducing the loss of the membrane element and reducing the cost.
6. The invention can back flush the ultrafiltration membrane, effectively prevent the membrane from being blocked, and prolong the service life of the ultrafiltration membrane.
Drawings
FIG. 1 is a schematic diagram of the present invention;
FIG. 2 is a schematic diagram of a three-stage serial raw water treatment process;
FIG. 3 is a schematic diagram of a raw water treatment process with an ultrafiltration membrane connected in series;
FIG. 4 is a schematic diagram of a process for treating raw water by connecting a secondary multi-medium filter and an ultrafiltration membrane in series;
FIG. 5 is a schematic diagram of a raw water treatment process with a primary multi-media filter, a secondary multi-media filter connected in parallel and an ultrafiltration membrane connected in series;
FIG. 6 is a schematic diagram of a single-stage raw water treatment process with a single-stage multi-media filter;
FIG. 7 is a schematic diagram of a two-stage multi-media filter single-stage raw water treatment process;
FIG. 8 is a schematic diagram of a single stage raw water treatment process with ultrafiltration membranes;
FIG. 9 is a schematic diagram of a backwash cleaning process;
FIG. 10 is a schematic diagram of the collection of produced water and concentrate;
FIG. 11 is a schematic diagram of produced water and concentrate water return;
FIG. 12 is a schematic diagram of produced water collection and concentrate water recirculation.
In the figure: 1. a raw water tank; 2. a raw water control valve; 3. a raw water pump; 4. a water inlet main pipe; 5. a primary multi-media filter; 5-1, a primary water inlet branch; 5-2, a primary water inlet control valve; 5-3, a first-stage water outlet branch; 5-4, a primary water outlet control valve; 5-5, switching branches of the primary multi-medium filter; 5-6, switching the water inlet control valve at one stage; 5-7, a first-stage switching control valve; 6. a secondary multimedia filter; 6-1, a secondary water inlet branch; 6-2, a secondary water inlet control valve; 6-3, a secondary water outlet branch; 6-4, a secondary water outlet control valve; 6-5, switching a branch of the secondary multi-medium filter; 6-6, a two-stage switching water inlet control valve; 6-7, a two-stage switching control valve; 7. an intermediate water tank; 7-1, RO reverse osmosis membrane water inlet branch; 7-10, a RO reverse osmosis membrane water inlet total control valve; 7-11, high pressure pump; 7-12, a RO reverse osmosis membrane water inlet total control valve; 7-13, an RO reverse osmosis membrane water inlet pressure gauge; 7-2, a water producing pipe; 7-3, a water producing branch; 7-4, a produced water reflux branch; 7-5, producing a water tank; 7-6, a water production control valve; 7-7, a backwater main pipe; 7-8, a produced water reflux control valve; 7-9, a produced water reflux flowmeter; 8. RO reverse osmosis membrane; 8-1, a concentrated water pipe; 8-2, a concentrated water pressure gauge; 8-3, a concentrated water discharge branch; 8-4, a concentrated water reflux branch; 8-5, a concentrated water tank; 8-6, a concentrated water discharge control valve; 8-7, a concentrated water reflux control valve; 8-8, a concentrated water reflux flowmeter; 9. an ultrafiltration membrane; 9-1, an ultrafiltration membrane water inlet main pipe; 9-10, an ultrafiltration membrane water inlet total control valve; 9-11, a water outlet control valve of a primary filter; 9-2, backwashing branch circuits; 9-3, back flushing the water inlet control valve; 9-4, a back flushing control valve; 9-5, backwashing drainage branch; 9-6, a backwash drain control valve; 9-7, a water producing branch; 9-8, a water production control valve.
Detailed Description
For a further understanding of the invention, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings in which:
referring to fig. 1, a membrane method water treatment process test device comprises a raw water tank 1, an ultrafiltration membrane 9 and an RO reverse osmosis membrane 8, wherein the raw water tank is connected with a water inlet main pipe 4, and the water inlet main pipe is provided with a raw water control valve 2 and a raw water pump 3; a primary multi-medium filter 5 and a secondary multi-medium filter 6 are arranged between the raw water tank and the ultrafiltration membrane, the water inlet end of the primary multi-medium filter 5 is connected with a water inlet main pipe 4 through a primary water inlet branch 5-1, and a primary water inlet control valve 5-2 is arranged on the primary water inlet branch 5-1; the water outlet pipe of the primary multi-medium filter 5 is connected with an ultrafiltration membrane water inlet main pipe 9-1 through a primary water outlet branch 5-3, and a primary water outlet control valve 5-4 is arranged on the primary water outlet branch 5-3; an ultrafiltration membrane water inlet main pipe is provided with an ultrafiltration membrane water inlet main control valve 9-10;
the water inlet end of the secondary multi-medium filter 6 is connected with the water inlet main pipe 4 through a secondary water inlet branch 6-1, and a secondary water inlet control valve 6-2 is arranged on the secondary water inlet branch 6-1; the water outlet pipe of the secondary multi-medium filter 6 is connected with the ultrafiltration membrane water inlet main pipe 9-1 through a secondary water outlet branch 6-3, and a secondary water outlet control valve 6-4 is arranged on the secondary water outlet branch 6-3;
a first-stage multi-medium filter switching branch 5-5 is arranged between the water inlet main pipe 4 and the ultrafiltration membrane water inlet main pipe 9-1 between the first-stage multi-medium filter 5 and the second-stage multi-medium filter 6; the primary multi-medium filter switching branch comprises a primary switching water inlet control valve 5-6 and a primary switching control valve 5-7 which are arranged on the water inlet main pipe 4; an ultrafiltration membrane water inlet main pipe 9-1 between the primary multi-medium filter switching branch 5-5 and the secondary water outlet branch 6-3 of the secondary multi-medium filter 6 is provided with a water outlet control valve 9-11 of the primary filter;
a secondary multi-medium filter switching branch 6-5 is arranged between the water inlet main pipe 4 and the ultrafiltration membrane 9 and between the ultrafiltration membrane water inlet main pipe 9-1; the secondary multi-medium filter switching branch comprises a secondary switching water inlet control valve 6-6 and a secondary switching control valve 6-7 which are arranged on the water inlet main pipe;
the back flush port of the ultrafiltration membrane 9 is connected with a back flush branch 9-2, the back flush branch is connected with a water inlet main pipe, a back flush water inlet control valve 9-3 is arranged on the water inlet main pipe, and the back flush branch is provided with a back flush control valve 9-4;
the back flush drainage end of the ultrafiltration membrane 9 is connected with a back flush drainage branch 9-5, and a back flush drainage control valve 9-6 is arranged on the back flush drainage branch 9-5;
the water producing end of the ultrafiltration membrane 9 is connected with a water producing branch 9-7, a water producing control valve 9-8 is arranged on the water producing branch, and the water producing branch is connected with an intermediate water tank 7;
the lower water outlet of the middle water tank 7 is connected with an RO reverse osmosis membrane water inlet branch 7-1, and the RO reverse osmosis membrane water inlet branch 7-1 is connected with the water inlet of the RO reverse osmosis membrane 8; the RO reverse osmosis membrane water inlet branch 7-1 is sequentially provided with an RO reverse osmosis membrane water inlet total control valve 7-10, a high pressure pump 7-11, an RO reverse osmosis membrane water inlet total control valve 7-12 and an RO reverse osmosis membrane water inlet pressure gauge 7-13;
the water producing port of the RO reverse osmosis membrane is connected with a water producing pipe 7-2, the water producing pipe 7-2 is connected with a water producing branch 7-3 and a water producing reflux branch 7-4 through a tee joint, the water producing branch 7-3 is connected with a water producing tank 7-5, and a water producing control valve 7-6 is arranged on the water producing branch 7-5; the produced water return branch 7-4 is connected with a return water main pipe 7-7, and the return water main pipe is connected with a return water port of the intermediate water tank 7; a produced water reflux control valve 7-8 and a produced water reflux flowmeter 7-9 are arranged on the produced water reflux branch 7-4;
the concentrated water port of the RO reverse osmosis membrane 8 is connected with a concentrated water pipe 8-1, a concentrated water pressure meter 8-2 is arranged on the concentrated water pipe, and the concentrated water pipe 8-1 is connected with a concentrated water discharge branch 8-3 and a concentrated water backflow branch 8-4 through a tee joint; the concentrated water discharge branch 8-3 is connected with the concentrated water tank 8-5; a concentrated water discharge control valve 8-6 is arranged on the concentrated water discharge branch; the concentrated water backflow branch 8-4 is connected with the water return main pipe 7-7, and the concentrated water backflow branch 8-4 is provided with a concentrated water backflow control valve 8-7 and a concentrated water backflow flowmeter 8-8.
During actual use, the relevant control valve is selected to be opened or closed according to experimental requirements, so that the raw water treatment of single stage, two stages and three stages is realized, and simultaneously the back flushing can be realized.
For example: the three-stage serial raw water treatment process comprises the following steps: referring to fig. 2, the primary switching water inlet control valve 5-6, the water outlet control valve 9-11 of the primary filter, the secondary switching water inlet control valve 6-6, the secondary switching control valve 6-7, the back flushing water inlet control valve 9-3, the back flushing control valve 9-4 and the back flushing water drain control valve 9-6 are closed;
the primary multi-medium filter and ultrafiltration membrane serial raw water treatment process comprises the following steps: referring to FIG. 3, the primary switching water inlet control valve 5-6, the primary switching control valve 5-7, the secondary water outlet control valve 6-4, the secondary switching control valve 6-7, the back flushing water inlet control valve 9-3, the back flushing control valve 9-4 and the back flushing water discharge control valve 9-6 are closed;
the treatment process of raw water with a secondary multi-medium filter and an ultrafiltration membrane connected in series comprises the following steps: referring to FIG. 4, the primary water inlet control valve 5-2, the primary switching control valve 5-7, the primary filter water outlet control valve 9-11, the secondary switching water inlet control valve 6-6, the secondary switching control valve 6-7, the back flushing water inlet control valve 9-3, the back flushing control valve 9-4 and the back flushing water drain control valve 9-6 are closed;
the raw water treatment process comprises the steps of connecting a primary multi-medium filter and a secondary multi-medium filter in parallel and connecting an ultrafiltration membrane in series: referring to FIG. 5, the primary switching control valve 5-7, the secondary switching water inlet control valve 6-6, the secondary switching control valve 6-7, the back flush water inlet control valve 9-3, the back flush control valve 9-4 and the back flush water discharge control valve 9-6 are closed;
the single-stage raw water treatment process of the primary multi-medium filter comprises the following steps: referring to FIG. 6, the primary switching water inlet control valve 5-6, the primary switching control valve 5-7, the secondary switching water inlet control valve 6-4, the secondary switching water inlet control valve 6-6, the back flushing control valve 9-4, the water production control valve 9-8 and the ultrafiltration membrane water inlet total control valve 9-10 are closed;
the single-stage raw water treatment process of the secondary multi-medium filter comprises the following steps: referring to FIG. 7, the primary water inlet control valve 5-2, the primary water outlet control valve 5-4, the primary switching control valve 5-7, the water outlet control valve 9-11 of the primary filter, the secondary switching water inlet control valve 6-6, the back flushing control valve 9-4, the water production control valve 9-8 and the ultrafiltration membrane water inlet total control valve 9-10 are closed;
the ultrafiltration membrane single-stage raw water treatment process comprises the following steps: referring to fig. 8, the primary water inlet control valve 5-2, the primary water outlet control valve 5-4, the primary switching control valve 5-7, the secondary water inlet control valve 6-2, the secondary water outlet control valve 6-4, the back flushing water inlet control valve 9-3, the back flushing control valve 9-4 and the water outlet control valve 9-11 of the primary filter are closed;
the back flush cleaning process comprises the following steps: referring to FIG. 9, the primary water inlet control valve 5-2, the primary switching control valve 5-7, the secondary water inlet control valve 6-2, the secondary switching control valve 6-7, the water production control valve 9-8 and the ultrafiltration membrane water inlet total control valve 9-10 are closed;
after entering the RO reverse osmosis membrane, relevant valves are controlled according to test requirements, for example:
collecting produced water and concentrated water: referring to fig. 10, the produced water reflux control valve 7-8, the concentrated water reflux branch 8-4 and the concentrated water reflux control valve 8-7 of the RO reverse osmosis membrane can be closed; the three-stage raw water treatment process is realized through the control, and the produced water is collected at the same time;
reflux of produced water and concentrated water: referring to fig. 11, the produced water control valve 7-6 and the concentrate discharge control valve 8-6 are closed.
Collecting produced water and refluxing concentrated water: referring to fig. 12, the produced water return control valve 7-8 and the concentrate discharge control valve 8-6 are closed;
compared with the prior art, the invention has the following advantages:
1. the invention has simple structure, reasonable design, convenient realization and low cost.
2. The invention is simple and easy to operate, and operators can independently operate and complete the whole treatment process only by simple training.
3. The invention can flexibly select the experimental process according to different raw water quality. The device comprises a two-stage multi-medium filter system, an ultrafiltration system and a reverse osmosis system; the three systems can be connected in series for raw water treatment; two systems can also be operated in series, including a multi-medium filter system, an ultrafiltration system, a multi-medium filter system, a reverse osmosis system, an ultrafiltration system and a reverse osmosis system; the three systems can also be used for treating raw water independently.
4. The invention is provided with a two-stage multi-medium filter system, and the two-stage multi-medium filter can be independently operated or operated in series according to different raw water selections; the system can test the performance of the specific raw water such as the filter material height, the filter material type, whether two-stage filtration is needed or not.
5. The water inlet end of the ultrafiltration membrane element is provided with the guide plate, so that membrane wire disturbance caused by water flow scouring can be effectively prevented, and further wire breakage can be prevented, thereby reducing the loss of the membrane element and reducing the cost.
6. The invention can back flush the ultrafiltration membrane, effectively prevent the membrane from being blocked, and prolong the service life of the ultrafiltration membrane.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the invention in any way, but any simple modification, equivalent variation and modification of the above embodiments according to the technical principles of the present invention are within the scope of the technical solutions of the present invention.
Claims (1)
1. A membrane method water treatment process test device is characterized in that: the ultrafiltration membrane comprises a raw water tank (1), an ultrafiltration membrane (9) and an RO reverse osmosis membrane (8), wherein the raw water tank is connected with a water inlet main pipe (4), and a raw water control valve (2) and a raw water pump (3) are arranged on the water inlet main pipe; a primary multi-medium filter (5) and a secondary multi-medium filter (6) are arranged between the raw water tank and the ultrafiltration membrane, the water inlet end of the primary multi-medium filter (5) is connected with a water inlet main pipe (4) through a primary water inlet branch (5-1), and a primary water inlet control valve (5-2) is arranged on the primary water inlet branch (5-1); the water outlet pipe of the primary multi-medium filter (5) is connected with the ultrafiltration membrane water inlet main pipe (9-1) through a primary water outlet branch (5-3), and a primary water outlet control valve (5-4) is arranged on the primary water outlet branch (5-3); an ultrafiltration membrane water inlet main pipe is provided with an ultrafiltration membrane water inlet main control valve (9-10);
the water inlet end of the secondary multi-medium filter (6) is connected with the water inlet main pipe (4) through a secondary water inlet branch (6-1), and a secondary water inlet control valve (6-2) is arranged on the secondary water inlet branch (6-1); the water outlet pipe of the secondary multi-medium filter (6) is connected with the ultrafiltration membrane water inlet main pipe (9-1) through a secondary water outlet branch (6-3), and a secondary water outlet control valve (6-4) is arranged on the secondary water outlet branch (6-3);
a primary multi-medium filter switching branch (5-5) is arranged between a water inlet main pipe (4) and an ultrafiltration membrane water inlet main pipe (9-1) between the primary multi-medium filter (5) and the secondary multi-medium filter (6); the primary multi-medium filter switching branch comprises a primary switching water inlet control valve (5-6) and a primary switching control valve (5-7) which are arranged on the water inlet main pipe (4); a water outlet control valve (9-11) of the primary filter is arranged on an ultrafiltration membrane water inlet main pipe (9-1) between the primary multi-medium filter switching branch (5-5) and the secondary water outlet branch (6-3) of the secondary multi-medium filter (6);
a secondary multi-medium filter switching branch (6-5) is arranged between a water inlet main pipe (4) and an ultrafiltration membrane water inlet main pipe (9-1) between the secondary multi-medium filter (6) and the ultrafiltration membrane (9); the secondary multi-medium filter switching branch comprises a secondary switching water inlet control valve (6-6) and a secondary switching control valve (6-7) which are arranged on the water inlet main pipe;
the back flush port of the ultrafiltration membrane (9) is connected with a back flush branch (9-2), the back flush branch is connected with a water inlet main pipe, a back flush water inlet control valve (9-3) is arranged on the water inlet main pipe, and the back flush branch is provided with a back flush control valve (9-4);
the back flush drainage end of the ultrafiltration membrane (9) is connected with a back flush drainage branch (9-5), and a back flush drainage control valve (9-6) is arranged on the back flush drainage branch (9-5);
the water producing end of the ultrafiltration membrane (9) is connected with a water producing branch (9-7), a water producing control valve (9-8) is arranged on the water producing branch, and the water producing branch is connected with an intermediate water tank (7);
the lower water outlet of the middle water tank (7) is connected with an RO reverse osmosis membrane water inlet branch (7-1), and the RO reverse osmosis membrane water inlet branch (7-1) is connected with the water inlet of an RO reverse osmosis membrane (8); an RO reverse osmosis membrane water inlet main control valve (7-10), a high-pressure pump (7-11), an RO reverse osmosis membrane water inlet main control valve (7-12) and an RO reverse osmosis membrane water inlet pressure gauge (7-13) are sequentially arranged on the RO reverse osmosis membrane water inlet branch (7-1);
the water producing port of the RO reverse osmosis membrane is connected with a water producing pipe (7-2), the water producing pipe (7-2) is connected with a water producing branch (7-3) and a water producing backflow branch (7-4) through a tee joint, the water producing branch (7-3) is connected with a water producing tank (7-5), and a water producing control valve (7-6) is arranged on the water producing branch (7-3); the produced water reflux branch (7-4) is connected with a water return main pipe (7-7), and the water return main pipe is connected with a water return port of the intermediate water tank (7); a produced water reflux control valve (7-8) and a produced water reflux flowmeter (7-9) are arranged on the produced water reflux branch (7-4);
the RO reverse osmosis membrane (8) is characterized in that a water concentration port is connected with a water concentration pipe (8-1), a water concentration pressure gauge (8-2) is arranged on the water concentration pipe, and the water concentration pipe (8-1) is connected with a water concentration discharge branch (8-3) and a water concentration backflow branch (8-4) through a tee joint; the concentrated water discharge branch (8-3) is connected with the concentrated water tank (8-5); a concentrated water discharge control valve (8-6) is arranged on the concentrated water discharge branch; the concentrated water backflow branch (8-4) is connected with the water return main pipe (7-7), and the concentrated water backflow branch (8-4) is provided with a concentrated water backflow control valve (8-7) and a concentrated water backflow flowmeter (8-8).
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| CN201711328860.8A CN107867766B (en) | 2017-12-13 | 2017-12-13 | Membrane method water treatment process test device |
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| CN107867766B true CN107867766B (en) | 2023-10-13 |
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| CN109052698A (en) * | 2018-09-26 | 2018-12-21 | 苏州江南航天机电工业有限公司 | A kind of vehicle-mounted water purifier device |
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| KR20120001845A (en) * | 2010-06-30 | 2012-01-05 | 효성굿스프링스 주식회사 | Apparatus for treating water |
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| CN202430070U (en) * | 2012-05-24 | 2012-09-12 | 北京诚合盛环境科技有限公司 | Heavy metal wastewater treatment and recycling equipment using two-membrane process |
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